smb2-dissector: learn the "REPLAY_OPERATION" flag
[obnox/wireshark/wip.git] / epan / dissectors / packet-hpsw.c
1 /* packet-hpsw.c
2  * Routines for HP Switch Config protocol
3  * Charlie Lenahan <clenahan@fortresstech.com>
4  *
5  * $Id$
6  *
7  * Wireshark - Network traffic analyzer
8  * By Gerald Combs <gerald@wireshark.org>
9  * Copyright 1998 Gerald Combs
10  *
11  * This program is free software; you can redistribute it and/or
12  * modify it under the terms of the GNU General Public License
13  * as published by the Free Software Foundation; either version 2
14  * of the License, or (at your option) any later version.
15  *
16  * This program is distributed in the hope that it will be useful,
17  * but WITHOUT ANY WARRANTY; without even the implied warranty of
18  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
19  * GNU General Public License for more details.
20  *
21  * You should have received a copy of the GNU General Public License
22  * along with this program; if not, write to the Free Software
23  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
24  */
25
26 #ifdef HAVE_CONFIG_H
27 # include "config.h"
28 #endif
29
30 #include <glib.h>
31 #include <epan/packet.h>
32 #include <epan/etypes.h>
33
34 #include "packet-hpext.h"
35
36 static void dissect_hpsw_tlv(tvbuff_t *tvb, int offset, int length,
37      proto_tree *tree, proto_item *ti, guint8 type);
38
39 static int proto_hpsw = -1;
40
41 static int hf_hpsw_version = -1;
42 static int hf_hpsw_type = -1;
43 static int hf_hpsw_tlvtype = -1;
44 static int hf_hpsw_tlvlength = -1;
45
46
47 static gint ett_hpsw = -1;
48 static gint ett_hpsw_tlv = -1;
49
50
51
52 #define HPFOO_DEVICE_NAME   0x1
53 #define HPFOO_DEVICE_VERSION 0x2
54 #define HPFOO_CONFIG_NAME 0x3
55 #define HPFOO_IP_ADDR 0x5
56 #define HPFOO_FIELD_7 0x7
57 #define HPFOO_FIELD_8 0x8
58 #define HPFOO_FIELD_9 0x9
59 #define HPFOO_FIELD_10 0xa
60 #define HPFOO_FIELD_12 0xc
61 #define HPFOO_DEVICE_ID 0xd /* Interpretation of this field is an educated guess */
62 #define HPFOO_MAC_ADDR 0xe
63
64 static const value_string hpsw_tlv_type_vals[] = {
65         { HPFOO_DEVICE_NAME,       "Device Name" },
66         { HPFOO_DEVICE_VERSION,     "Version" },
67         { HPFOO_CONFIG_NAME,     "Config" },
68         { HPFOO_IP_ADDR,     "IP Addr" },
69         { HPFOO_FIELD_7,     "Field 7" },
70         { HPFOO_FIELD_8,     "Field 8" },
71         { HPFOO_FIELD_9,     "Field 9" },
72         { HPFOO_FIELD_10,     "Field 10" },
73         { HPFOO_FIELD_12,     "Field 12" },
74         { HPFOO_DEVICE_ID,    "Device ID" },
75         { HPFOO_MAC_ADDR,     "MAC Addr" },
76         { 0x00,               NULL }
77 };
78
79
80 static void
81 dissect_hpsw(tvbuff_t *tvb, packet_info *pinfo, proto_tree *tree)
82 {
83         proto_tree      *hp_tree = NULL;
84         proto_tree      *tlv_tree = NULL;
85         proto_item      *ti = NULL;
86         guint8          version;
87
88         col_set_str(pinfo->cinfo, COL_PROTOCOL, "HP");
89
90         col_set_str(pinfo->cinfo, COL_INFO, "HP Switch Protocol");
91
92         version = tvb_get_guint8(tvb, 0);
93
94         if (tree) {
95                 guint16 offset =0;
96
97                 ti = proto_tree_add_item(tree, proto_hpsw, tvb, 0, -1, ENC_NA);
98                 hp_tree = proto_item_add_subtree(ti, ett_hpsw);
99                 proto_tree_add_uint(hp_tree, hf_hpsw_version, tvb, 0, 1, version);
100                 offset++;
101
102                 proto_tree_add_item(hp_tree, hf_hpsw_type, tvb, 1, 1, ENC_BIG_ENDIAN);
103                 offset++;
104
105                 while ( tvb_reported_length_remaining(tvb, offset) > 0 )
106                 {
107                         guint8 type,length;
108
109                         type = tvb_get_guint8(tvb, offset);
110                         length = tvb_get_guint8(tvb, offset+1);
111
112                         /* make sure still in valid tlv */
113                         if (( length < 1 ) || ( length > tvb_length_remaining(tvb,offset+2)))
114                                 break;
115
116                         ti = proto_tree_add_text(hp_tree,tvb,offset,length+2,"%s",
117                                                 val_to_str(type,hpsw_tlv_type_vals,"Unknown TLV type: 0x%02x"));
118
119                         tlv_tree=proto_item_add_subtree(ti,ett_hpsw_tlv);
120
121                         /* type */
122                         proto_tree_add_uint(tlv_tree, hf_hpsw_tlvtype, tvb, offset, 1, type);
123                         offset++;
124
125                         /* LENGTH (not inclusive of type and length bytes) */
126                         proto_tree_add_uint(tlv_tree, hf_hpsw_tlvlength, tvb, offset, 1, length);
127                         offset++;
128
129                         dissect_hpsw_tlv(tvb,offset,length,tlv_tree,ti,type);
130
131                         offset += length;
132
133                 }
134
135         }
136 }
137
138 static void
139 dissect_hpsw_tlv(tvbuff_t *tvb, int offset, int length,
140     proto_tree *tree, proto_item *ti, guint8 type)
141 {
142     switch (type) {
143
144     case HPFOO_DEVICE_NAME:
145         if (length > 0) {
146             proto_item_set_text(ti, "Device Name: %s", tvb_format_text(tvb, offset, length - 1));
147             proto_tree_add_text(tree, tvb, offset, length, "Device Name: %s", tvb_format_text(tvb, offset, length - 1));
148         } else {
149             proto_item_set_text(ti, "Device Name: Bad length %u", length);
150             proto_tree_add_text(tree, tvb, offset, length, "Device Name: Bad length %u", length);
151         }
152         break;
153
154     case HPFOO_DEVICE_VERSION:
155         if (length > 0) {
156             proto_item_set_text(ti, "Version: %s", tvb_format_text(tvb, offset, length - 1));
157             proto_tree_add_text(tree, tvb, offset, length, "Version: %s", tvb_format_text(tvb, offset, length - 1));
158         } else {
159             proto_item_set_text(ti, "Version: Bad length %u", length);
160             proto_tree_add_text(tree, tvb, offset, length, "Version: Bad length %u", length);
161         }
162         break;
163
164     case HPFOO_CONFIG_NAME:
165         if (length > 0) {
166             proto_item_set_text(ti, "Config: %s", tvb_format_text(tvb, offset, length - 1));
167             proto_tree_add_text(tree, tvb, offset, length, "Config: %s", tvb_format_text(tvb, offset, length - 1));
168         } else {
169             proto_item_set_text(ti, "Config: Bad length %u", length);
170             proto_tree_add_text(tree, tvb, offset, length, "Config: Bad length %u", length);
171         }
172         break;
173
174     case HPFOO_IP_ADDR:
175         if (length == 4) {
176             const char *ipstr = tvb_ip_to_str(tvb, offset);
177             proto_item_set_text(ti, "IP Addr: %s", ipstr);
178             proto_tree_add_text(tree, tvb, offset, length, "IP Addr: %s", ipstr);
179         } else {
180             proto_item_set_text(ti, "IP Addr: Bad length %u", length);
181             proto_tree_add_text(tree, tvb, offset, length, "IP Addr: Bad length %u", length);
182         }
183         break;
184
185     case HPFOO_FIELD_7:
186         if (length == 1) {
187             proto_item_set_text(ti, "Field 7: 0x%02x", tvb_get_guint8(tvb,offset));
188             proto_tree_add_text(tree, tvb, offset, length, "Field 7: 0x%02x", tvb_get_guint8(tvb,offset));
189         } else {
190             proto_item_set_text(ti, "Field 7: Bad length %u", length);
191             proto_tree_add_text(tree, tvb, offset, length, "Field 7: Bad length %u", length);
192         }
193         break;
194
195     case HPFOO_FIELD_8:
196         if (length == 2) {
197             proto_item_set_text(ti, "Field 8: 0x%04x", tvb_get_ntohs(tvb,offset));
198             proto_tree_add_text(tree, tvb, offset, length, "Field 8: 0x%04x", tvb_get_ntohs(tvb,offset));
199         } else {
200             proto_item_set_text(ti, "Field 8: Bad length %u", length);
201             proto_tree_add_text(tree, tvb, offset, length, "Field 8: Bad length %u", length);
202         }
203         break;
204
205     case HPFOO_FIELD_9:
206         if (length == 2) {
207             proto_item_set_text(ti, "Field 9: 0x%04x", tvb_get_ntohs(tvb,offset));
208             proto_tree_add_text(tree, tvb, offset, length, "Field 9: 0x%04x", tvb_get_ntohs(tvb,offset));
209         } else {
210             proto_item_set_text(ti, "Field 9: Bad length %u", length);
211             proto_tree_add_text(tree, tvb, offset, length, "Field 9: Bad length %u", length);
212         }
213         break;
214
215     case HPFOO_FIELD_10:
216         if (length == 4) {
217             proto_item_set_text(ti, "Field 10: 0x%08x", tvb_get_ntohl(tvb,offset));
218             proto_tree_add_text(tree, tvb, offset, length, "Field 10: 0x%08x", tvb_get_ntohl(tvb,offset));
219         } else {
220             proto_item_set_text(ti, "Field 10: Bad length %u", length);
221             proto_tree_add_text(tree, tvb, offset, length, "Field 10: Bad length %u", length);
222         }
223         break;
224
225     case HPFOO_FIELD_12:
226         if (length == 1) {
227             proto_item_set_text(ti, "Field 12: 0x%02x", tvb_get_guint8(tvb,offset));
228             proto_tree_add_text(tree, tvb, offset, length, "Field 12: 0x%02x", tvb_get_guint8(tvb,offset));
229         } else {
230             proto_item_set_text(ti, "Field 12: Bad length %u", length);
231             proto_tree_add_text(tree, tvb, offset, length, "Field 12: Bad length %u", length);
232         }
233         break;
234
235     case HPFOO_DEVICE_ID:
236         if (length == 10) {
237             const gchar *macstr = tvb_ether_to_str(tvb, offset);
238             guint32 id=tvb_get_ntohl(tvb, offset+6);
239             proto_item_set_text(ti, "Device ID: %s / %u", macstr, id);
240             proto_tree_add_text(tree, tvb, offset, 10, "Device ID: %s / %u", macstr, id);
241         } else {
242             proto_item_set_text(ti, "Device ID: Bad length %u", length);
243             proto_tree_add_text(tree, tvb, offset, length, "Device ID: Bad length %u", length);
244         }
245         break;
246
247     case HPFOO_MAC_ADDR:
248         if (length == 6) {
249             const gchar *macstr = tvb_ether_to_str(tvb, offset);
250             proto_item_set_text(ti, "MAC Addr: %s", macstr);
251             proto_tree_add_text(tree, tvb, offset, length, "MAC Addr: %s", macstr);
252         } else {
253             proto_item_set_text(ti, "MAC Addr: Bad length %u", length);
254             proto_tree_add_text(tree, tvb, offset, length, "MAC Addr: Bad length %u", length);
255         }
256         break;
257
258     default:
259         proto_tree_add_text(tree, tvb, offset, length, "Data");
260         break;
261     }
262 }
263
264
265
266
267 void
268 proto_register_hpsw(void)
269 {
270         static hf_register_info hf[] = {
271                 { &hf_hpsw_version,
272                 { "Version", "hpsw.version", FT_UINT8, BASE_HEX,
273                         NULL, 0x0, NULL, HFILL }},
274                 { &hf_hpsw_type,
275                 { "Type", "hpsw.type", FT_UINT8, BASE_HEX,
276                         NULL, 0x0, NULL, HFILL }},
277                 { &hf_hpsw_tlvtype,
278                 { "Type", "hpsw.tlv_type", FT_UINT8, BASE_HEX,
279                         VALS(hpsw_tlv_type_vals), 0x0, NULL, HFILL }},
280                 { &hf_hpsw_tlvlength,
281                 { "Length", "hpsw.tlv_len", FT_UINT8, BASE_DEC,
282                         NULL, 0x0, NULL, HFILL }}
283         };
284
285         static gint *ett[] = {
286                 &ett_hpsw,
287                 &ett_hpsw_tlv
288         };
289
290         proto_hpsw = proto_register_protocol( "HP Switch Protocol", "HPSW", "hpsw");
291         proto_register_field_array(proto_hpsw, hf, array_length(hf));
292         proto_register_subtree_array(ett, array_length(ett));
293
294         register_dissector("hpsw", dissect_hpsw, proto_hpsw);
295 }
296
297 void
298 proto_reg_handoff_hpsw(void)
299 {
300         dissector_handle_t hpsw_handle;
301
302         hpsw_handle = find_dissector("hpsw");
303
304         dissector_add_uint("hpext.dxsap", HPEXT_HPSW, hpsw_handle);
305 }